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Showing results for tags 'sealed glazing units'.
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For a fixed window (external, non-opening), is there any reason in principle why one could not skip having a window frame altogether and mount a triple-glazed "sealed unit" directly in to the aperture created in an exterior timber wall, perhaps with only a minimal bracket for fixing purposes? It strikes me that frames are expensive, complicated, (sometimes greatly) reduce glazing area, and are designed mostly to enable windows to open. And frames also have comparatively poor U-values (even for Passivhaus windows) than the glass they contain. Problems I can imagine: Sealing and ensuring water runs off properly. Coping with differential heat expansion (bang goes the window on a hot day!). Access to swap the sealed unit if necessary. Undoubtedly, there must be something fundamental that I am missing. Please enlighten me.
